Ruby (on Rails)

Ruby is a multi-purpose object-oriented programming language popular for its relative ease of use. Ruby on Rails, often shortened to Rails or RoR, is an open source web application framework for the Ruby programming language.

Resources in this category:

Code Beach
http://www.codebeach.com/

"Code Beach is your complete guide to free and open source code and tutorials for ASP, C++, C#, ColdFusion, Delphi/Kylix, Java, JavaScript, Palm, Perl, PHP, Pocket PC, Python, Visual Basic, and XML."

Railscasts
http://railscasts.com/

"Every week Ryan Bates will host a new Railscasts episode featuring tips and tricks with Ruby on Rails. These screencasts are short and focus on one technique so you can quickly move on to applying it to your own project. The topics target the intermediate Rails developer, but beginners and experts will get something out of it as well."

Ruby Programming Language
http://www.ruby-lang.org/en/

Everything you need to know about the Ruby programming language, including documentation, a users' guide, tutorials, and code/application libraries. Use the "Try Ruby!" link to test Ruby out before downloading and installing on your own system.

SitePoint
http://www.sitepoint.com/

Compilation of articles and blog entries on a variety of web development topics: HTML, CSS, web design, JavaScript, Flash, server- and client-side coding, and much more. Information ranges from basic to advanced. Also includes handy CSS, HTML, and JavaScript references.